The Department of Defense, through the Naval Research Laboratory (NRL), intends to award a sole source purchase order to Ansys Lumerical for Finite Difference Time Domain full-wave electromagnetic simulation software. This procurement is being conducted under Simplified Acquisition Procedures in accordance with FAR Part 13.106-1(b), specifically for purchases not exceeding $250,000, and is not open for competitive proposals. The software is critical for advanced electromagnetic simulations, which play a vital role in various defense applications. Interested parties may submit evidence of their capability to meet this requirement by the closing date of August 20, 2025, at 0800 hours, referencing Notice of Intent number N00173-25-Q-1301257707 in all correspondence. For inquiries, contact Maximilian Fritts at maximilian.r.fritts.civ@us.navy.mil or Jamie L. Dixon at jamie.l.dixon8.civ@us.navy.mil.